:root{color-scheme:light;--ink:#183331;--paper:#f7f7f1;--muted:#586b65;--line:#d6dfd7;--accent:#176453;--soft:#e7efe7;--warm:#b04b2d}
*{box-sizing:border-box}body{margin:0;font-family:"PingFang TC","Noto Sans TC",system-ui,sans-serif;background:#102824;color:var(--ink)}button,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.42}button:focus-visible,a:focus-visible,summary:focus-visible,pre:focus-visible{outline:3px solid #dc8c3c;outline-offset:3px}a{color:var(--accent)}button{border:1px solid var(--line);border-radius:7px;padding:9px 15px;min-height:44px;background:#fff;color:var(--ink)}[hidden]{display:none!important}h2,h3,p,figure{margin:0}p{line-height:1.55}h2{letter-spacing:-.035em}img,video{display:block;max-width:100%}summary{cursor:pointer;line-height:1.6}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:15px/1.8 ui-monospace,monospace;background:#eef1eb;padding:18px;border-radius:6px}mark{background:#d9ead6;color:inherit;padding:1px 5px}small{font-size:14px;line-height:1.5}b,strong{font-weight:720}
.cs-slide{color:var(--ink);background:var(--paper);padding:26px 36px;display:grid;grid-template-rows:auto auto auto minmax(0,1fr) auto;gap:12px;width:1120px;height:580px;font-size:18px}
.cs-slide .kicker{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);display:flex;align-items:center;justify-content:space-between;gap:12px}.cs-teaching-label{font-weight:500;letter-spacing:0;color:var(--muted)}.cs-slide h2{font-size:36px;font-weight:780;line-height:1.2;white-space:pre-line}.cs-slide .lead{font-size:19px;line-height:1.5;color:var(--muted)}.cs-body{min-width:0;min-height:0;display:flex;flex-direction:column;justify-content:center;gap:12px}.cs-slide footer{font-size:12px;line-height:1.4;color:var(--muted);display:flex;justify-content:space-between;gap:24px;align-items:end;padding-top:8px}.cs-slide footer a{color:var(--muted);text-decoration-thickness:1px;text-underline-offset:3px}.cs-slide h3{font-size:21px;line-height:1.35;margin-bottom:12px}.cs-slide [data-copy-direct]{align-self:flex-start;background:var(--accent);color:#fff;border:0;padding:8px 16px;min-height:38px;font-size:15px}.cs-slide .cs-inline-copy{display:flex;gap:12px;align-items:center;margin-top:8px;min-height:38px}.cs-inline-copy [role=status]{font-size:14px;color:var(--accent)}
.cs-caption,.cs-paper-note,.cs-ui-hint,.cs-case-note{font-size:14px;line-height:1.5;color:var(--muted)}.cs-caption{margin-top:8px}.cs-task,.cs-rubric-key{background:var(--soft);border-left:3px solid var(--accent);padding:10px 14px;font-size:16px;line-height:1.55}.case-tag{display:inline-block;font-size:12px;color:var(--accent);background:var(--soft);padding:4px 8px;margin-bottom:8px}
.cs-split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;min-width:0}.cs-sheet{background:white;border:1px solid var(--line);padding:20px;min-width:0;border-radius:6px}.cs-files{font-size:16px;line-height:1.6;padding:0;background:none}.cs-list{list-style:none;margin:0;padding:0}.cs-list li{display:grid;grid-template-columns:30px 1fr;gap:8px;padding:8px 0;border-bottom:1px solid var(--line);font-size:18px;line-height:1.45}.cs-list b{font-size:19px;color:var(--accent)}.cs-list strong{display:block}.cs-list small{display:block;color:var(--muted);font-size:14px;line-height:1.5;margin-top:3px}.cs-facts{width:100%;border-collapse:collapse;font-size:17px;line-height:1.45}.cs-facts td,.cs-facts th{text-align:left;vertical-align:top;padding:8px 8px;border-bottom:1px solid var(--line)}.cs-facts th{color:var(--accent)}.cs-facts td:first-child{white-space:nowrap}.cs-prompt{background:#173f37;color:#fff;padding:23px;border-radius:7px;font-size:21px;line-height:1.8}.cs-prompt em{font-style:normal;color:#cee4b9}.cs-operation{display:none}.cs-link{font-size:15px;text-underline-offset:4px}
.cs-photo{width:100%;height:210px;object-fit:cover;border-radius:5px}.cs-photo.tall{height:270px;object-position:70% center}.cs-ui img{width:100%;height:205px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:5px}.cs-ui figcaption{font-size:13px;line-height:1.5;color:var(--muted);margin-top:7px}.cs-ui img[data-zoom]{cursor:zoom-in}.cs-comparison{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.cs-comparison h3{font-size:20px}.cs-comparison p{font-size:17px}.cs-composition{display:flex;gap:32px;align-items:center}.cs-composition>ol{flex:1}.cs-case-compare{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.cs-case-compare>div{min-width:0}.cs-case-compare img{max-height:245px;object-fit:contain}.cs-dm{position:relative;width:215px;aspect-ratio:4/5;background:#211710;margin:auto;overflow:hidden;color:#fff;box-shadow:8px 9px 0 #d7dfd4;flex-shrink:0}.cs-dm img{position:absolute;width:100%;height:100%;object-fit:cover;object-position:65%}.cs-dm:after{content:"";position:absolute;inset:0;background:linear-gradient(#18120adb,transparent 47%,#18120aef)}.cs-dm .dm-top,.cs-dm .dm-bottom{position:absolute;z-index:1;left:16px;right:16px}.cs-dm .dm-top{top:16px}.cs-dm .dm-top small{font-size:9px;letter-spacing:.12em}.cs-dm .dm-top h3{font-size:23px;line-height:1.3;color:white;margin:12px 0 0}.cs-dm .dm-bottom{bottom:16px}.cs-dm .dm-bottom p{font-size:11px;margin:0}.cs-dm .dm-bottom strong{font-size:18px;display:block;margin:5px 0}.cs-dm .cta{font-size:9px;border-top:1px solid #9c8d72;margin-top:7px;padding-top:7px}.cs-dm-before .dm-top{top:100px;left:55px}.cs-dm-before .dm-bottom strong{font-size:11px}.cs-dm-before .cta{font-size:7px}.cs-angles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.cs-angles>div,.cs-angles article{padding:22px 18px;background:white;border:1px solid var(--line);border-radius:6px}.cs-angles .selected{border:2px solid var(--accent);background:var(--soft)}.cs-angles h3{font-size:20px}.cs-angles p{font-size:18px}.cs-evidence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:center}.cs-evidence blockquote{font-size:23px;line-height:1.6;margin:0;border-left:3px solid var(--accent);padding-left:20px}.cs-evidence .cs-sheet{font-size:17px;line-height:1.6}.cs-evidence strong{color:var(--accent)}
.cs-course-cover{grid-template-rows:minmax(0,1fr) auto;padding:32px 38px}.cs-cover-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:32px;align-items:center;min-height:0}.cs-cover-heading h2{font-size:45px;line-height:1.2;margin:18px 0}.cs-cover-heading .lead{font-size:19px;max-width:440px}.cs-cover-facts{position:relative;display:flex;flex-direction:column;gap:5px;margin-top:28px;padding-left:15px;border-left:3px solid var(--accent);font-size:16px;line-height:1.5;color:var(--muted)}.cs-cover-facts b{font-size:13px;color:var(--accent);margin-bottom:3px}.cs-cover-art{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}.cs-cover-dm{transform:rotate(-3deg)}.cs-cover-dm img{height:300px;width:100%;object-fit:contain;filter:drop-shadow(6px 9px 8px #173e3727)}.cs-cover-art span{display:block;font-size:15px;font-weight:700;margin-top:15px}.cs-cover-film figure{margin:0 0 12px;border:6px solid #173e37;border-radius:4px;transform:rotate(2deg)}.cs-cover-film img{width:100%;height:114px;object-fit:cover}.cs-cover-film small{color:var(--muted);font-size:12px}.cs-cover-heading .kicker{font-size:14px}.cs-course-cover footer{padding-top:16px;border-top:1px solid var(--line);font-size:14px}
.cs-diagram-label{display:block;color:var(--muted);font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.025em}.cs-grounded-demo{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;align-items:stretch}.cs-grounded-demo>section{padding:22px 26px;border:1px solid var(--line);border-radius:9px;background:#fff}.cs-answer-guess .cs-chat-bubble{background:#fbefea;color:#9e482d;border:1px dashed #d3a99b}.cs-chat-bubble{font-size:27px;line-height:1.5;padding:16px 20px;background:var(--soft);border-radius:12px 12px 12px 0;color:var(--ink)}.cs-missing-source{display:flex;align-items:center;justify-content:space-between;margin:28px 0 0;color:#9e482d;font-size:19px;border-top:1px dashed #d3a99b;padding-top:20px}.cs-missing-source i{font-size:53px;font-style:normal;font-weight:300}.cs-announcement{position:relative;background:#fff8de;border:1px solid #e0d5a7;padding:16px 22px;box-shadow:4px 4px 0 #ece8d6;transform:rotate(-1deg)}.cs-announcement b{font-size:16px;color:#736343}.cs-announcement p{font-size:26px;margin:10px 0 5px}.cs-announcement mark{background:#efe1a0}.cs-announcement span{font-size:16px;color:#736343}.cs-source-connector{height:26px;text-align:center;font-size:25px;color:var(--accent);line-height:1}.cs-answer-grounded .cs-chat-bubble{font-size:25px;padding-block:10px}.cs-answer-grounded>small{display:block;font-size:14px;color:var(--accent);margin-top:9px;text-align:right}
.cs-plan-note{font-size:17px;background:var(--soft);padding:11px 18px;border-left:3px solid var(--accent);display:flex;justify-content:space-between}.cs-plan-note span{font-size:15px;color:var(--muted)}.cs-plan-papers{display:grid;grid-template-columns:1fr 40px 1fr 40px 1fr;align-items:center;gap:12px;margin:20px 0 0}.cs-plan-papers>section{min-width:0}.cs-step-arrow{font-size:32px;color:var(--accent);text-align:center}.cs-calendar,.cs-mail-note,.cs-invite-note{border:1px solid var(--line);background:white;padding:18px 20px;min-height:165px;box-shadow:4px 5px 0 #dde5db}.cs-calendar{border-top:8px solid var(--accent)}.cs-calendar b,.cs-mail-note b,.cs-invite-note b{display:block;font-size:20px;margin-bottom:13px}.cs-calendar span{display:block;font-size:19px;border-bottom:1px solid var(--line);padding:7px 0}.cs-mail-note p{font-size:21px}.cs-mail-note strong{color:var(--warm)}.cs-plan-wait{opacity:.45}.cs-plan-wait p{font-size:19px}.is-waiting{opacity:.4}.cs-plan-return{color:var(--warm);font-size:18px;border-bottom:2px solid #bf8f71;width:65%;padding:13px 0 8px;text-align:center;border-radius:0 0 0 20px}
.cs-judgement-demo{display:grid;grid-template-columns:1fr .85fr 1.12fr;gap:24px;align-items:center}.cs-draft-note,.cs-revised-note{padding:24px;background:#fff;border:1px solid var(--line);border-radius:8px;min-height:240px;display:flex;flex-direction:column;justify-content:center}.cs-draft-note p,.cs-revised-note p{font-size:24px;line-height:1.8}.cs-draft-note mark{background:#f7e3d7;text-decoration:underline;text-decoration-color:#bb5b37;text-underline-offset:5px}.cs-draft-note small,.cs-revised-note small{margin-top:18px;font-size:15px;color:var(--muted)}.cs-human-check{min-width:0}.cs-roster{padding:20px 14px;border:2px solid var(--accent);background:var(--soft);border-radius:8px;position:relative}.cs-roster:before{content:"→";position:absolute;left:-25px;top:42%;color:var(--accent)}.cs-roster b,.cs-roster span,.cs-roster strong{display:block;line-height:1.6;font-size:17px}.cs-roster b{font-size:20px;margin-bottom:10px}.cs-roster strong{color:var(--warm)}.cs-decision-branches{display:flex;justify-content:space-between;gap:7px;margin-top:14px;font-size:15px;color:var(--muted)}.cs-decision-branches b{color:var(--accent)}.cs-revised-note{background:#e4eee1;border-color:#c6d5bf}.cs-revised-note strong{color:var(--accent)}
.cs-purpose-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:45px;align-items:center}.cs-purpose-modules{display:grid;gap:16px}.cs-purpose-modules section{padding:13px 0;border-bottom:1px solid var(--line)}.cs-purpose-modules span{display:block;color:var(--accent);font-size:14px;margin-bottom:5px}.cs-purpose-modules strong{display:block;font-size:23px;line-height:1.4}.cs-poster-preview{height:285px;object-fit:contain;width:100%}.cs-film-purpose img{height:230px;width:100%;object-fit:cover;border-radius:5px}.cs-film-purpose figcaption{font-size:15px;line-height:1.5;color:var(--muted);margin-top:10px}.cs-launch-path{display:grid;grid-template-columns:1fr 32px 1fr 32px 1fr;gap:14px;align-items:center}.cs-launch-path section{padding:22px;background:#fff;border:1px solid var(--line);border-radius:7px;min-height:225px}.cs-launch-path section>b{font-size:31px;color:var(--accent);display:block;margin-bottom:18px}.cs-launch-path>span{text-align:center;font-size:28px;color:var(--accent)}.cs-launch-path p{font-size:19px}.cs-handoff{display:grid;grid-template-columns:1fr 44px 1fr;gap:26px;align-items:center}.cs-file-card{display:flex;flex-direction:column;gap:8px;background:white;border:1px solid var(--line);padding:18px 22px;margin:12px 0;box-shadow:4px 4px 0 var(--soft)}.cs-file-card b{font-size:24px}.cs-file-card span{font:16px/1.5 ui-monospace,monospace;color:var(--muted)}.cs-handoff p{font-size:18px;margin-top:16px}.cs-review-main{display:grid;grid-template-columns:1.3fr 1fr;gap:35px;align-items:center}.cs-review-posters{display:grid;grid-template-columns:1fr 1fr;gap:24px}.cs-review-posters figcaption{font-size:15px;margin-bottom:13px;text-align:center}.cs-review-posters .cs-dm{width:180px}.cs-review-scores p{font-size:19px;padding:10px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}.cs-review-scores b{color:var(--accent);white-space:nowrap}.cs-review-scores small{display:block;color:var(--muted);margin-top:13px}.cs-free-route{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.cs-free-route section{padding:22px;background:#fff;border-top:4px solid var(--accent)}.cs-free-route b{font-size:32px;color:var(--accent);display:block;margin-bottom:18px}.cs-free-route p{font-size:19px}.cs-practice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.cs-practice-grid>div{background:#fff;padding:16px;border:1px solid var(--line);border-radius:5px}.cs-practice-grid b,.cs-practice-grid strong,.cs-practice-grid span{display:block}.cs-practice-grid b{font-size:15px;color:var(--accent);margin-bottom:8px}.cs-practice-grid strong{font-size:18px;margin-bottom:6px}.cs-practice-grid span{font-size:14px;line-height:1.5;color:var(--muted)}.cs-break .big-number{font-size:132px;line-height:1;color:var(--accent);font-weight:760}.cs-break small{font-size:26px}.cs-break h3{font-size:26px;margin-top:15px}
.cs-video{width:100%;height:235px;background:#122a25;object-fit:contain;border-radius:6px}.cs-video-intro{display:grid;grid-template-columns:.8fr 1.3fr;gap:30px;align-items:center}.cs-video-intro .cs-video{height:260px}.cs-video-intro h3{font-size:23px}.cs-timebar{display:grid;grid-template-columns:4fr 8fr 8fr 6fr 4fr;gap:4px;margin:16px 0}.cs-timebar>div{background:#e0e8dc;padding:17px 9px;font-size:16px;line-height:1.5;text-align:center;min-width:0}.cs-timebar>div:nth-child(2),.cs-timebar>div:nth-child(3){background:var(--accent);color:white}.cs-timebar strong{font-size:30px;display:block;line-height:1.3}.cs-editing-materials{display:grid;grid-template-columns:4fr 8fr 8fr 6fr 4fr;gap:4px;font-size:15px;text-align:center;color:var(--muted)}.cs-editing-result{display:flex;flex-direction:column;gap:9px;padding:14px 22px;background:var(--soft);margin-top:8px}.cs-editing-result b{font-size:23px}.cs-editing-result span{font-size:17px}.cs-storyboard-pair .cs-photo{height:190px}.cs-storyboard-pair .cs-caption{font-size:15px}.cs-storyboard-pair h3{font-size:21px}
/* Notes reuse the actual lesson content at reading sizes. */
.cs-notes-content{font-size:17px;line-height:1.7}.cs-notes-content h3{font-size:20px;margin:24px 0 10px}.cs-notes-content ol{padding-left:25px}.cs-notes-content li{margin:12px 0}.cs-notes-content details{margin:24px 0;border-top:1px solid var(--line);padding-top:16px}.cs-notes-content .cs-notes-details{padding-top:24px;margin-top:24px;border-top:1px solid var(--line)}.cs-notes-content .cs-notes-details p{margin:14px 0}.cs-notes-content .cs-scholar{display:none}.cs-notes-content img{max-height:220px;object-fit:contain}.cs-notes-content .cs-dm img{max-height:none;object-fit:cover}.cs-notes-content .cs-concept-map,.cs-notes-content .cs-planning-map,.cs-notes-content .cs-human-map,.cs-notes-content .cs-class-question,.cs-notes-content .cs-concept-takeaway,.cs-notes-content .cs-source-note{display:none}